Record Case Detail

Notes

This function is in beta test. Please help improve it in the issues here.

Stderr

=================================================================
==398==ERROR: AddressSanitizer: heap-use-after-free on address 0x603000000070 at pc 0x55ea3ac91c1a bp 0x7ffed0beed90 sp 0x7ffed0beed80
WRITE of size 8 at 0x603000000070 thread T0
    #0 0x55ea3ac91c19 in Dlist<int>::insertBack(int*) (/out/package/dlist_mem+0x5c19)
    #1 0x55ea3ac8f486 in Dlist<int>::copyAll(Dlist<int> const&) [clone .isra.17] (/out/package/dlist_mem+0x3486)
    #2 0x55ea3ac90ac6 in case5() (/out/package/dlist_mem+0x4ac6)
    #3 0x55ea3ac8e197 in main (/out/package/dlist_mem+0x2197)
    #4 0x7f487662ab96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
    #5 0x55ea3ac8e599 in _start (/out/package/dlist_mem+0x2599)

0x603000000070 is located 0 bytes inside of 24-byte region [0x603000000070,0x603000000088)
freed by thread T0 here:
    #0 0x7f487707c9c8 in operator delete(void*, unsigned long) (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xe19c8)
    #1 0x55ea3ac90aa5 in case5() (/out/package/dlist_mem+0x4aa5)
    #2 0x6

Hints

Your answer may be identical to the JOJ answer in the first several lines.

However, the main problem you meet now is Runtime Error. And the exit code of your program is 1, which should be 0.

Please double check your code to solve this problem and try again.

Your Answer


        

JOJ Answer

Test success.